vague flower
The hammer feels kind of lack luster with it only really interacting with pegs. I think adding something akin to the springs from ALBW would be pretty neat. Giving the hammer the ability to launch between layers or just send the player a long distance when you come across them
digital quiver
Yes.
Also, hammers interact with POSTS, not pegs
viscid arrow
it also uniquely helps for taking care of Spikadillos. but yeah, more hammer uses would be nice